1967-1972 Chevrolet C10 C20 K20 Panel Base, 4.1L (L6) 250 CID ;. 1967-1972 Chevrolet C10 C20 C30 Pickup Base, 4.1L (L6) 250 CID ;. 1967-1972 Chevrolet C10 C20 C30 Pickup Base, 4.6L (V8) 283 CID ;. The fan shroud basically houses the fan blades securing it in place and keeping it from damaging the other engine components that may disturb the smooth and even operation of the engine.
